[go: up one dir, main page]

WO2007005362A3 - Use of supercritical fluid to dry wafer and clean lens in immersion lithography - Google Patents

Use of supercritical fluid to dry wafer and clean lens in immersion lithography Download PDF

Info

Publication number
WO2007005362A3
WO2007005362A3 PCT/US2006/024765 US2006024765W WO2007005362A3 WO 2007005362 A3 WO2007005362 A3 WO 2007005362A3 US 2006024765 W US2006024765 W US 2006024765W WO 2007005362 A3 WO2007005362 A3 WO 2007005362A3
Authority
WO
WIPO (PCT)
Prior art keywords
immersion
supercritical fluid
immersion lithography
dry wafer
clean lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2006/024765
Other languages
French (fr)
Other versions
WO2007005362A2 (en
Inventor
Ramkumar Subramanian
Bhanwar Singh
Khoi A Phan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Micro Devices Inc
Spansion LLC
Original Assignee
Advanced Micro Devices Inc
Spansion LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Micro Devices Inc, Spansion LLC filed Critical Advanced Micro Devices Inc
Priority to CN2006800236145A priority Critical patent/CN101467102B/en
Priority to DE112006001768T priority patent/DE112006001768B8/en
Priority to JP2008519446A priority patent/JP2009500828A/en
Publication of WO2007005362A2 publication Critical patent/WO2007005362A2/en
Publication of WO2007005362A3 publication Critical patent/WO2007005362A3/en
Anticipated expiration legal-status Critical
Priority to GB0801083A priority patent/GB2442402B/en
Ceased legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70Microphotolithographic exposure; Apparatus therefor
    • G03F7/70216Mask projection systems
    • G03F7/70341Details of immersion lithography aspects, e.g. exposure media or control of immersion liquid supply
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/20Exposure; Apparatus therefor
    • G03F7/2041Exposure; Apparatus therefor in the presence of a fluid, e.g. immersion; using fluid cooling means
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/26Processing photosensitive materials; Apparatus therefor
    • G03F7/30Imagewise removal using liquid means
    • G03F7/32Liquid compositions therefor, e.g. developers
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70Microphotolithographic exposure; Apparatus therefor
    • G03F7/708Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
    • G03F7/70908Hygiene, e.g. preventing apparatus pollution, mitigating effect of pollution or removing pollutants from apparatus
    • G03F7/70916Pollution mitigation, i.e. mitigating effect of contamination or debris, e.g. foil traps
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70Microphotolithographic exposure; Apparatus therefor
    • G03F7/708Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
    • G03F7/70908Hygiene, e.g. preventing apparatus pollution, mitigating effect of pollution or removing pollutants from apparatus
    • G03F7/70925Cleaning, i.e. actively freeing apparatus from pollutants, e.g. using plasma cleaning

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Abstract

Disclosed are immersion lithography methods and systems involving irradiating a photoresist through a lens and an immersion liquid of an immersion lithography tool, the immersion liquid in an immersion space contacting the lens and the photoresist; removing the immersion liquid from the immersion space; charging the immersion space with a supercritical fluid; removing the supercritical fluid from the immersion space; and charging the immersion space with immersion liquid.
PCT/US2006/024765 2005-07-01 2006-06-23 Use of supercritical fluid to dry wafer and clean lens in immersion lithography Ceased WO2007005362A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2006800236145A CN101467102B (en) 2005-07-01 2006-06-23 Use of supercritical fluid to dry wafer and clean lens in immersion lithography
DE112006001768T DE112006001768B8 (en) 2005-07-01 2006-06-23 Use of supercritical fluid to dry the discs and clean the lenses in immersion lithography
JP2008519446A JP2009500828A (en) 2005-07-01 2006-06-23 Method and system for drying a wafer and cleaning a lens using a supercritical fluid in immersion lithography
GB0801083A GB2442402B (en) 2005-07-01 2008-01-22 Use of supercritical fluid to dry wafer and clean lens in immersion lithography

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/173,257 US7262422B2 (en) 2005-07-01 2005-07-01 Use of supercritical fluid to dry wafer and clean lens in immersion lithography
US11/173,257 2005-07-01

Publications (2)

Publication Number Publication Date
WO2007005362A2 WO2007005362A2 (en) 2007-01-11
WO2007005362A3 true WO2007005362A3 (en) 2007-04-12

Family

ID=37547708

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/024765 Ceased WO2007005362A2 (en) 2005-07-01 2006-06-23 Use of supercritical fluid to dry wafer and clean lens in immersion lithography

Country Status (8)

Country Link
US (1) US7262422B2 (en)
JP (1) JP2009500828A (en)
KR (1) KR20080026204A (en)
CN (1) CN101467102B (en)
DE (1) DE112006001768B8 (en)
GB (1) GB2442402B (en)
TW (1) TW200707123A (en)
WO (1) WO2007005362A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8654305B2 (en) 2007-02-15 2014-02-18 Asml Holding N.V. Systems and methods for insitu lens cleaning in immersion lithography
US8817226B2 (en) 2007-02-15 2014-08-26 Asml Holding N.V. Systems and methods for insitu lens cleaning using ozone in immersion lithography

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101289959B1 (en) 2003-04-11 2013-07-26 가부시키가이샤 니콘 Cleanup method for optics in immersion lithography
TWI612556B (en) 2003-05-23 2018-01-21 尼康股份有限公司 Exposure apparatus, exposure method, and component manufacturing method
TWI245163B (en) 2003-08-29 2005-12-11 Asml Netherlands Bv Lithographic apparatus and device manufacturing method
CN101776850B (en) 2004-06-09 2013-03-20 尼康股份有限公司 Exposure system and device production method
US7385670B2 (en) * 2004-10-05 2008-06-10 Asml Netherlands B.V. Lithographic apparatus, cleaning system and cleaning method for in situ removing contamination from a component in a lithographic apparatus
US7156925B1 (en) * 2004-11-01 2007-01-02 Advanced Micro Devices, Inc. Using supercritical fluids to clean lenses and monitor defects
KR101339887B1 (en) * 2004-12-06 2013-12-10 가부시키가이샤 니콘 Maintenance method, maintenance apparatus, exposure apparatus and device manufacturing method
US7880860B2 (en) 2004-12-20 2011-02-01 Asml Netherlands B.V. Lithographic apparatus and device manufacturing method
US8125610B2 (en) * 2005-12-02 2012-02-28 ASML Metherlands B.V. Method for preventing or reducing contamination of an immersion type projection apparatus and an immersion type lithographic apparatus
US7528387B2 (en) * 2005-12-29 2009-05-05 Interuniversitair Microelektronica Centrum (Imec) Methods and systems for characterising and optimising immersion lithographic processing
JP4704221B2 (en) * 2006-01-26 2011-06-15 株式会社Sokudo Substrate processing apparatus and substrate processing method
KR20090023335A (en) * 2006-05-22 2009-03-04 가부시키가이샤 니콘 Exposure method and apparatus, maintenance method, and device manufacturing method
US7969548B2 (en) * 2006-05-22 2011-06-28 Asml Netherlands B.V. Lithographic apparatus and lithographic apparatus cleaning method
WO2008026593A1 (en) * 2006-08-30 2008-03-06 Nikon Corporation Exposure apparatus, device production method, cleaning method, and cleaning member
WO2008029884A1 (en) * 2006-09-08 2008-03-13 Nikon Corporation Cleaning member, cleaning method and device manufacturing method
US8947629B2 (en) * 2007-05-04 2015-02-03 Asml Netherlands B.V. Cleaning device, a lithographic apparatus and a lithographic apparatus cleaning method
US8011377B2 (en) 2007-05-04 2011-09-06 Asml Netherlands B.V. Cleaning device and a lithographic apparatus cleaning method
US7866330B2 (en) * 2007-05-04 2011-01-11 Asml Netherlands B.V. Cleaning device, a lithographic apparatus and a lithographic apparatus cleaning method
US7841352B2 (en) * 2007-05-04 2010-11-30 Asml Netherlands B.V. Cleaning device, a lithographic apparatus and a lithographic apparatus cleaning method
US8264662B2 (en) * 2007-06-18 2012-09-11 Taiwan Semiconductor Manufacturing Company, Ltd. In-line particle detection for immersion lithography
US9019466B2 (en) * 2007-07-24 2015-04-28 Asml Netherlands B.V. Lithographic apparatus, reflective member and a method of irradiating the underside of a liquid supply system
US7916269B2 (en) * 2007-07-24 2011-03-29 Asml Netherlands B.V. Lithographic apparatus and contamination removal or prevention method
NL1035942A1 (en) * 2007-09-27 2009-03-30 Asml Netherlands Bv Lithographic Apparatus and Method of Cleaning a Lithographic Apparatus.
SG151198A1 (en) * 2007-09-27 2009-04-30 Asml Netherlands Bv Methods relating to immersion lithography and an immersion lithographic apparatus
JP5017232B2 (en) * 2007-10-31 2012-09-05 エーエスエムエル ネザーランズ ビー.ブイ. Cleaning apparatus and immersion lithography apparatus
NL1036273A1 (en) * 2007-12-18 2009-06-19 Asml Netherlands Bv Lithographic apparatus and method of cleaning a surface or an immersion lithographic apparatus.
NL1036306A1 (en) * 2007-12-20 2009-06-23 Asml Netherlands Bv Lithographic apparatus and in-line cleaning apparatus.
US8339572B2 (en) 2008-01-25 2012-12-25 Asml Netherlands B.V. Lithographic apparatus and device manufacturing method
US8454409B2 (en) * 2009-09-10 2013-06-04 Rave N.P., Inc. CO2 nozzles
WO2011090690A1 (en) * 2009-12-28 2011-07-28 Pioneer Hi-Bred International, Inc. Sorghum fertility restorer genotypes and methods of marker-assisted selection
JP6876417B2 (en) * 2016-12-02 2021-05-26 東京エレクトロン株式会社 Substrate processing equipment cleaning method and substrate processing equipment cleaning system
CN113189849B (en) * 2021-04-22 2023-08-11 中国科学院光电技术研究所 A near-field lithography immersion system and its immersion unit and interface module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001797A1 (en) * 1997-07-03 1999-01-14 John Samuel Batchelder Method for optical inspection and lithography
US20040180299A1 (en) * 2003-03-11 2004-09-16 Rolland Jason P. Immersion lithography methods using carbon dioxide
WO2005019935A2 (en) * 2003-08-21 2005-03-03 Advanced Micro Devices, Inc. Refractive index system monitor and control for immersion lithography

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5879866A (en) 1994-12-19 1999-03-09 International Business Machines Corporation Image recording process with improved image tolerances using embedded AR coatings
JPH11162831A (en) * 1997-11-21 1999-06-18 Nikon Corp Projection exposure apparatus and projection exposure method
KR100559017B1 (en) * 2000-08-14 2006-03-10 동경 엘렉트론 주식회사 Removal of photoresist and photoresist residues from semiconductors using supercritical carbon dioxide
WO2002091078A1 (en) 2001-05-07 2002-11-14 Massachusetts Institute Of Technology Methods and apparatus employing an index matching medium
JP2006502558A (en) 2001-11-07 2006-01-19 アプライド マテリアルズ インコーポレイテッド Optical spot grating array printer
DE10210899A1 (en) 2002-03-08 2003-09-18 Zeiss Carl Smt Ag Refractive projection lens for immersion lithography
US6764552B1 (en) * 2002-04-18 2004-07-20 Novellus Systems, Inc. Supercritical solutions for cleaning photoresist and post-etch residue from low-k materials
US20040011386A1 (en) * 2002-07-17 2004-01-22 Scp Global Technologies Inc. Composition and method for removing photoresist and/or resist residue using supercritical fluids
JP2004193231A (en) * 2002-12-10 2004-07-08 Mitsubishi Electric Corp Substrate cleaning method
US6875286B2 (en) * 2002-12-16 2005-04-05 International Business Machines Corporation Solid CO2 cleaning
KR101289959B1 (en) * 2003-04-11 2013-07-26 가부시키가이샤 니콘 Cleanup method for optics in immersion lithography
US7684008B2 (en) * 2003-06-11 2010-03-23 Asml Netherlands B.V. Lithographic apparatus and device manufacturing method
JP2006528835A (en) * 2003-07-24 2006-12-21 カール・ツアイス・エスエムテイ・アーゲー Microlithography projection exposure apparatus and method for introducing immersion liquid into immersion space
US7323064B2 (en) * 2003-08-06 2008-01-29 Micron Technology, Inc. Supercritical fluid technology for cleaning processing chambers and systems
JP4305095B2 (en) * 2003-08-29 2009-07-29 株式会社ニコン Immersion projection exposure apparatus equipped with an optical component cleaning mechanism and immersion optical component cleaning method
JP2005081302A (en) * 2003-09-10 2005-03-31 Japan Organo Co Ltd Cleaning method and cleaning apparatus for electronic parts using supercritical fluid
US20070002296A1 (en) * 2005-06-30 2007-01-04 Taiwan Semiconductor Manufacturing Company, Ltd. Immersion lithography defect reduction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001797A1 (en) * 1997-07-03 1999-01-14 John Samuel Batchelder Method for optical inspection and lithography
US20040180299A1 (en) * 2003-03-11 2004-09-16 Rolland Jason P. Immersion lithography methods using carbon dioxide
WO2005019935A2 (en) * 2003-08-21 2005-03-03 Advanced Micro Devices, Inc. Refractive index system monitor and control for immersion lithography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8654305B2 (en) 2007-02-15 2014-02-18 Asml Holding N.V. Systems and methods for insitu lens cleaning in immersion lithography
US8817226B2 (en) 2007-02-15 2014-08-26 Asml Holding N.V. Systems and methods for insitu lens cleaning using ozone in immersion lithography

Also Published As

Publication number Publication date
DE112006001768B4 (en) 2012-02-16
GB0801083D0 (en) 2008-02-27
CN101467102B (en) 2012-01-11
GB2442402A (en) 2008-04-02
WO2007005362A2 (en) 2007-01-11
KR20080026204A (en) 2008-03-24
JP2009500828A (en) 2009-01-08
DE112006001768T5 (en) 2008-08-14
US20070026345A1 (en) 2007-02-01
CN101467102A (en) 2009-06-24
US7262422B2 (en) 2007-08-28
TW200707123A (en) 2007-02-16
DE112006001768B8 (en) 2012-07-12
GB2442402B (en) 2009-02-18

Similar Documents

Publication Publication Date Title
WO2007005362A3 (en) Use of supercritical fluid to dry wafer and clean lens in immersion lithography
NL1024805A1 (en) Optical device for use in a lithography method, in particular for the production of a semiconductor device, and optical lithography method.
WO2007044995A3 (en) Systems, methods and devices for removing obstructions from a blood vessel
WO2006081524A3 (en) Systems, methods and devices for removing obstructions from a blood vessel
WO2006063199A3 (en) Aortic valve repair
DK1990023T3 (en) Devices suitable for use in surgical repair of the vagina damaged by pelvic prolapse
ITRM20050329A1 (en) PROCEDURE FOR TREATING ABRASIVE SUSPENSIONS EXHAUSTED FOR THE RECOVERY OF THEIR RECYCLABLE COMPONENTS AND ITS PLANT.
WO2008066828A3 (en) Fluid-permeable body having a superhydrophobic surface
NL2000577A1 (en) Device and method for particle monitoring in immersion lithography.
WO2007056717A3 (en) Methods and devices for the removal of organic contaminants from water
EA200800199A1 (en) METHOD OF OBTAINING OLEFIN AND / OR SIMPLE AIR
WO2010019722A3 (en) Combinatorial approach to the development of cleaning formulations for glue removal in semiconductor applications
NO20053230D0 (en) Sieve and fluid separation apparatus and method using the same.
EP2042912A4 (en) Liquid agent for contact lens and method for hydrophilizing contact lens by using the same
WO2006084641A3 (en) Immersion liquid, exposure apparatus, and exposure process
BRPI0905935A2 (en) "method for identifying contaminants within a contaminant-containing liquid hydrocarbon medium, method for removing contaminants from the contaminant-containing liquid hydrocarbon medium and method for assessing treatment of the hydrocarbon medium"
TW200713444A (en) Technique for efficiently patterning an underbump metallization layer using a dry etch process
WO2009111256A3 (en) Method and system for surface water treatment
NL2000103A1 (en) System and method for photolithography in semiconductor manufacture.
TW200702941A (en) Fluids for immersion lithography systems
NL1036062C (en) DEVICE FOR CLEANING GASES, SUCH AS SPECIAL AIR, OR LIQUIDS, SUCH AS SPECIAL WATER.
NL1032675A1 (en) Irradiation method and device for immersion lithography.
NL1030789A1 (en) Polymer for immersion lithography, photoresist composition containing it, method for the preparation of a semiconductor device, and semiconductor device.
TW200731028A (en) Cleaning liquid and cleaning method
WO2008115587A8 (en) Portable fluid filtration device

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680023614.5

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2008519446

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1120060017683

Country of ref document: DE

ENP Entry into the national phase

Ref document number: 0801083

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20060623

WWE Wipo information: entry into national phase

Ref document number: 0801083.7

Country of ref document: GB

WWE Wipo information: entry into national phase

Ref document number: 1020087002830

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 06773980

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 06773980

Country of ref document: EP

Kind code of ref document: A2

RET De translation (de og part 6b)

Ref document number: 112006001768

Country of ref document: DE

Date of ref document: 20080814

Kind code of ref document: P

REG Reference to national code

Ref country code: DE

Ref legal event code: 8607